CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY; 1. SAFETY PRECAUTIONS; before accessing any parts inside the printer.- Page 71

CHAPTER 4  DISASSEMBLY AND RE-ASSEMBLY

4-1

CHAPTER  4     

DISASSEMBLY AND RE-ASSEMBLY

1. SAFETY 

PRECAUTIONS

To avoid creating secondary problems by mishandling, follow the warnings and precautions
below during maintenance work.

WARNING

(1)  Always turn off the power switch and unplug the power cord from the power outlet

before accessing any parts inside the printer.

(2)  Some parts inside the printer are extremely hot immediately after the printer is

used.  When opening the front cover or rear cover to access any parts inside the
printer, never touch the red colored parts shown in the following figures.

!

CAUTION:

(1)  Be careful not to lose screws, washers, or other parts removed.

(2)  Be sure to apply grease to the gears and applicable positions specified in this chapter.

(3)  When using soldering irons or other heat-generating tools, take care not to accidentally

damage parts such as wires, PCBs and covers.

(4)  Before handling any PCBs, touch a metal portion of the equipment to discharge any static

electricity charge on your body, or the electronic parts or components may be damaged.

(5)  When transporting PCBs, be sure to wrap them in the correct protective packaging.

(6)  Be sure to replace self-tapping screws correctly, if removed.  Unless otherwise specified,

tighten screws to the following torque values.

TAPTITE, BIND or CUP B

 M3: 

70N 

 cm

 M4: 

80N 

 cm

TAPTITE, CUP S

 M3: 

80N 

 cm

 SCREW
 M3: 

70N 

 cm

 M4: 

80N 

 cm

(7)  When connecting or disconnecting cable connectors, hold the connector body, not the

cables.  If the connector has a lock, release the connector lock first to release it.

(8)  After a repair, check not only the repaired portion but also all connectors.  Also check that

other related portions are functioning properly before operational checks.